Mercruiser Impeller GM 3 Piece Housing SIE18-3087K (Gaskets Included)
Mercruiser Impeller GM 3 Piece Housing SIE18-3087K
- Fits: Either Quicksilver, Model 46-72774-A32 pump or the Jabsco replacement. Not for the double flat shaft pump that Mercruiser started using around 2002.
- Sierra Replacement for Mercruiser Impeller 47-59362 - pump housing number 46-807151.
- Fits 2 piece body pumps and the brass Jabsco replacement pump (will not use 1 gasket).
- Gaskets Included Single Flat D Shaped Shaft
Mercruiser Impeller GM 3 Piece Housing SIE18-3087K
Most inboard boats use a raw water system to cool the engine. Cold water cycles through the engine at a safe operating temperature. Boats use impellers to take in raw water. An impeller is a hub with flexible rubber fins. When the impeller rotates, water is sucked into the cooling system.
Overall impellers tend to be durable. During operation, water keeps them lubricated and prevents from damage. That being said, the potential engine damage from a failed impeller is substantial. Without the impeller, your boat’s engine will overheat.
As a boat owner, you should pay close attention to the condition of your impeller. Regular inspections and replacements can prevent major headaches and expenses down the road.
We recomend keeping a spare new impeller in your boat just in case.
